Files
axolotl/tests/e2e/multigpu/test_gemma3.py
Wing Lian a85efffbef bump transformers==4.52.4 (#2800) [skip ci]
* bump transformers==4.52.4

* don't use hf offline for qwen tokenizer

* increase timeout

* don't use methodtype

* increase timeout

* better assertion logging

* upgrade deepspeed version too
2025-06-18 15:46:14 -04:00

96 lines
3.0 KiB
Python

"""
E2E tests for multigpu lora tinyllama
"""
from pathlib import Path
import pytest
import yaml
from accelerate.test_utils import execute_subprocess_async
from huggingface_hub import snapshot_download
from transformers.testing_utils import get_torch_dist_unique_port
from axolotl.utils.dict import DictDefault
from tests.e2e.utils import check_tensorboard
AXOLOTL_ROOT = Path(__file__).parent.parent.parent.parent
@pytest.fixture(scope="session", autouse=True)
def download_model():
# download the model
snapshot_download("axolotl-mirrors/gemma-3-4b-pt", repo_type="model")
class TestMultiGPUGemma3:
"""
Test case for Gemma3 models using LoRA
"""
def test_lora_ddp_packed(self, temp_dir):
# pylint: disable=duplicate-code
cfg = DictDefault(
{
"base_model": "axolotl-mirrors/gemma-3-4b-pt",
"sequence_len": 2048,
"ddp_find_unused_parameters": True,
"sample_packing": True,
"eval_sample_packing": False,
"pad_to_sequence_len": True,
"adapter": "lora",
"lora_r": 8,
"lora_alpha": 16,
"lora_dropout": 0.05,
"lora_target_linear": True,
"val_set_size": 0.0,
"chat_template": "gemma3",
"datasets": [
{
"path": "mlabonne/FineTome-100k",
"type": "chat_template",
"split": "train[:10%]",
"field_messages": "conversations",
"message_field_role": "from",
"message_field_content": "value",
},
],
"num_epochs": 1,
"max_steps": 2,
"micro_batch_size": 4,
"gradient_checkpointing": True,
"gradient_checkpointing_kwargs": {
"use_reentrant": False,
},
"gradient_accumulation_steps": 2,
"output_dir": temp_dir,
"learning_rate": 0.0001,
"optimizer": "adamw_8bit",
"lr_scheduler": "cosine",
"flash_attention": True,
"use_tensorboard": True,
"bf16": True,
}
)
# write cfg to yaml file
Path(temp_dir).mkdir(parents=True, exist_ok=True)
with open(Path(temp_dir) / "config.yaml", "w", encoding="utf-8") as fout:
fout.write(yaml.dump(cfg.to_dict(), Dumper=yaml.Dumper))
execute_subprocess_async(
[
"axolotl",
"train",
str(Path(temp_dir) / "config.yaml"),
"--num-processes",
"2",
"--main-process-port",
f"{get_torch_dist_unique_port()}",
]
)
check_tensorboard(
temp_dir + "/runs", "train/train_loss", 1.8, "Train Loss (%s) is too high"
)